| From: | Stephen Frost <sfrost(at)snowman(dot)net> |
|---|---|
| To: | Jeff Janes <jeff(dot)janes(at)gmail(dot)com> |
| Cc: | Vitalii Tymchyshyn <tivv00(at)gmail(dot)com>, Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com>, Charles Gomes <charlesrg(at)outlook(dot)com>, Ondrej Ivanič <ondrej(dot)ivanic(at)gmail(dot)com>, "pgsql-performance(at)postgresql(dot)org" <pgsql-performance(at)postgresql(dot)org> |
| Subject: | Re: Performance on Bulk Insert to Partitioned Table |
| Date: | 2012-12-28 14:11:53 |
| Message-ID: | 20121228141153.GJ16126@tamriel.snowman.net |
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| Lists: | pgsql-performance |
* Jeff Janes (jeff(dot)janes(at)gmail(dot)com) wrote:
> I had thought that too, but the catch is that the target expressions do not
> need to be constants when the function is created. Indeed, they can even
> be volatile.
Right, any optimization in this regard would only work in certain
instances- eg: when the 'WHEN' components are all constants and the data
type is something we can manage, etc, etc.
Thanks,
Stephen
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